Infection Rates of Aedes Triseriatus Following Ingestion of La Crosse Virus by the Larvae

B. R. Miller Departments of Entomology and Veterinary Science, University of Wisconsin, Madison, Wisconsin 53706

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G. R. DeFoliart Departments of Entomology and Veterinary Science, University of Wisconsin, Madison, Wisconsin 53706

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W. R. Hansen Departments of Entomology and Veterinary Science, University of Wisconsin, Madison, Wisconsin 53706

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T. M. Yuill Departments of Entomology and Veterinary Science, University of Wisconsin, Madison, Wisconsin 53706

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DOI:
https://doi.org/10.4269/ajtmh.1978.27.605
Volume/Issue:
Volume 27: Issue 3
Page(s):
605–608
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Infection rates ranged from 0–2.1% in adults of Aedes triseriatus reared from groups of larvae that had ingested La Crosse (LAC) virus (California encephalitis group) at dosages of 7.0–8.3 log10 SMICLD50/ml. Females resulting from orally infected larvae transmitted the virus to suckling mice. Larvae that devoured carcasses of transovarially infected larvae containing 3.0 log10 SMICLD50/ml failed to become infected. Ingestion by larvae of infected carcasses appears, therefore, to be unimportant as a method of horizontal amplification of LAC virus.

Author Notes

Copyright:
Copyright © 1978 by The American Society of Tropical Medicine and Hygiene 1978
Accepted:
01 Oct 1977
|
Published Online:
May 1978
Cover The American Journal of Tropical Medicine and Hygiene
The American Journal of Tropical Medicine and Hygiene
Print ISSN:
0002-9637
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